Valve for inflation purposes



Aug. 29, 1933. T. BEAsLEY VALVE FOR INFLATIN PURPOSES Filed Feb. 1u, 1933 MM2/d 4 Patented 29, 1933"` n ,VALVE fron: iNFILA'iroNgPURross. H 'i Y Thomas Beasley, London; England AThis Y invention relates to i mprovernents` ing valves forinflation purposes. Y, f e j .2 Thev chief object of thisinvention isltoprovide u a valve tment of improved construction which` 5 can be screwed into the body ofl the usual `fitting without alteration to the said" iittingor .intona body shaped to receive the saidi'itment The body mayhave the k,usual means. for attachment., to the inner tubesof Vtires or for aittaclfnnentto` aircushions or inatable swimming belts or the `like.- l i According to the present inventionV `the rirnproved fitment adapted tovscrew. into a valve body comprises `a longitudinali` rod.` membery `formed vwithwia.' conev Vat one Aend and having aA threaded enlargement Aat the other, en d,`.said A threaded enlargement -having transverse and longitudinal bores, the latter being iitteddwitha spindle formed or providedLin'termediately with;A 20 a disc adapted ,toy seat on the lower end of a."

` sleeve iitted, inthe said longitudinal boresaid enlargement being 'formed or providedfwith means whereby the fitment may be rotatedfthe arrangement-being s uch 'as to provide .a valve which will permit of exceptional ease of inilation Vand which can be readilvmanipulated to prevent leakage Aorto .l test pressuref Y is; The invention will now be described `vvith'ref-A erence to the accompanying drawing,in whichz-` Figure 1 is ra longitudinal sectional View of one formvof valve constructed according to this in`' vention showing themain valvegclosed;V u

Y Figure 2 isa similar Vview showing the 'maint vlveopen;` y V1 `Figure 3 is an elevation of the valve member or .lfltment;v l l n l i Figure 4 is an elevation thereof partly in sec(- ytion; y n f j l.

Figure 5 is a plan `view of one form of head of the valve member shown inFigure 4;

Figure 6 is a perspective view of the closing cap having means for `manipulating the iitment'; Figure '7 is a detail of a modified form of head 1 for the tment; l Y 4-5- vFigure 8 is a plan thereof, and Figure 9 is a perspective `view of form of closing cap. Y e u l As shown, the improved tme'nt is adapted to screw into a body or jacket 1 of a valve, which is `iitted at its end with any convenient means for securing the body of the'valve to the inner tubing. The body 1 may begthe usual body of a motor or cycle tireV valve.* The said securing q means usually comprise a lowerfenlargement 2 fand an adjustable upturned iianged member a modified lameter:foryabcuit half the length'of the body 1,.l Theadjaent portion or. the" rest of the body is e. bore 15 and the lowerendof the spindlelmrioroa adapted {tofgr'ip theginner fube therebetween" and@- y looking means comprising'a flange-enlargement I adapted.;l torpbe secured ion" the lrim of thefjwhveelj` f bye `hilton @thread 3 `providedon ,thezbody 1101;' the? valve.; Theupper endvalve 'body 1 lwhich is of -reduced diameter T;andmhreaded atis "also threaded/interiorly at `5 for a short ldistance and. thenpformed with va bore vof'any vconvenientpdifor-med with-va.; Smaller bored, thus an annular y shoulder- 8 is-provided aboutmidway of thevalve form ya 4seatingforthe improved iiitmentlshown i inA detail at1,2.- so {as toscr'ew -into the' interior threaded' .parutions f`ftaava1ve11bodyjr This threaded v enlargement `1250i theE rodw9 is formed withfoppo;` Y l sitejflalts 13 so that` a portion of the threadedjen;

largement'willbeof a'width substantially equal to the diametergof the rodflikezeigtensionlQ., :A5 1" andaflongitudinalybore V15 is drilled fromwfch'ea" threaded endpfth [tment down tojo'r slightly'- l belo'wpthe transversejhole 14,Y In -a Msliglfltly-enjlargedporltion of thislongitudinal borell is posi-x ltioned a sleeve -16,- the lower .end of Vwhichkis adapted 15o` respon the abutment formed by the the sleeve 16 is adapted to provide a seating fora 90 .ilat valve'londisc l'lrformed or provided on a.

spindle!18u*movablygmountedin" the longitudinal Y bore 15. .The contactingv face of'` the disc 1l-1 is preferably curved or coned as shownptovprovide ani' this valve which may be termedA aneedle valve is placed therein.` The spindle 18 is loose in the.

needlefcontacts, with the transverse bore`14/ or with the base of the bore115'whentherev lspno air pressure in the tire.' When vthe tire is pumped v. n

up. the Vvalve 17- acts asa non-return valve or 105kv of therod-like tment 9 is` formed with means4 whereby the iitmentmay be rotatedgto ,move-the,

back pressure valve against the lower endof the sleeve '16. y The upper end or screwed portion `12 'i conical end 10 o i its seating 8 or to position the; conical end V10`thereon. Such means alreprefer'- ably in the form of` a pair of lugs or"projections ,ine-Figures 13 pand ;4-f. V@The fument cO'm-r I0 4positioned and secured within the bore 15. after 19 to cofo'perate with a key or the like formed' on a cap 20 which isradaptedto screw on tothe o nipple endV 4 ofthe valve body` 1.

' isreducedV to` a diameter less-l thanthe interior will receive the `projecting end of the stem; 18 of.

' the needle Valve. The exterior of the cap 20v is' milled or otherwise knurled for manipulation pur;

` otherwise' tted a washer'holding member 24; This member 24 vvinthe forni of an auxiliary cap The lugs or projectionsy 19 are formed by cutting away opposite sides of the threaded enlargement 12` and the sleevel 16 as shown more'particularly in Fig;- ures 3, 4 and 5.' The outerend 21 of the `cap 20 thread ofthe vbore 6 and is recessed at 22` and formedwith a;slot 23 to receive the Ylugs or projections 19- so that when the cap 20 is unscrewed` off the Valve body and turned over and placed on the said' lugsor'projections l19 thetment 9 can be rotated by means of the" cap toropen oi" close the lower Valve. The recessy 222m the ex,- tension 21 of the cap '2O isvof` such depth that it poses. In the interior of the cap is sprung or i s shaped to retainan annular washer 25to en .fitted into 'any usual type of! valve body whichy gage onV theend of the Valve body and the interior Y' of the member 24is bored or shaped with a recess 26 to receive the upperend of the needle valve s`tem18.l f f Y vIf desired, V'the means whereby the tmentl9 maybe rotated. may comprise a transversev slot to receive` a suitable key, or the threaded en Y largement 12 maybe further'enlarged'to-profV vide a head for the transverse slot, Vthe said head being of a diameter slightly-less than the screwed end-}4 of the valve body 1 which forms the nipple` f for 'the usual pump connection. Alternatively,

and as shown in Figures' 7 and 8, an enlarged head 27 on the-end o1"- the'tment may be formed with afpair of oppositelyjarranged flats 28. vThe enlarged head 27 formed with the oppositely ar- :ra'nged flats 28 is shaped and adapted to co-,op-

er'at'ewith recess 29 in the end of acap 30 which lis-adapted to screw on tothe nipple end 4'of the valve'body 1 as will be understood. lThe iiiterior of they capv 30 may be fitted with a'washer to Contact with the enlarged head 27 when the said cap is screwed onto the nipple extension 4 of the body l.' The improved trnent maybe may have its bore. slightly enlarged sor as to vleave as vmuch space as possible between the rod and the bore of the body or-the'rod may-'be reduced indiameter for a certain portionof its length.v` l 7 In operationfand when itis' desired to pump*- up lthe 'tire and referring moreparti'cularly vto the'iirst construction'-described, the capff20 is unscre'wed off the nipple'end 4 of the body 1" and inverted so that the slot 23 ftherein-co-operates rsf with'the lugs 19 of the fltment as shown in Fig-f ure-2. EThe cap-20 is given," for instance,one

"f-completer-vrotation'towithdraw the conical en d Vesi .f

y tofv .nection which willpositively seal the valve.

10 off the lower Valve seating 8. The usual pump connection is rthen rscrewed on to the nipple end 4 of the Valve body Y1 and the tire is pumped up in the usual manner, the valve 17 operating as Vwilljbe Well understood to prevent exit of air.

. In' order to testthe pressure of air in the tire the flexible connection of the pump is unscrewed and -.a`testing device of 'any usual orconvenient construction is applied to the needle 18 "to depress the back pressure or non-returnY valve 17. When the desired pressure is obtained the cap 20,is

again used to rotate the tnient 9 and to place the conical end 10 on its seating 8y and close the lower valve. The'lower Valveseating 8 will preferably have'a: knife edge to receive the conical end l0 and there will be a metal to metal con- Y the veventfofany leakage the back pressure or A.non-return needle valve 17 will effectja further 'seal and when the cap 20 is screwed on, ifa

Washer 25- Visv arranged therein, further sealing be screwedr on tothe'body lof the valver in the flatablearticles. Y In the latter "cases the 4body 1 of the valve will be suitably modified for connectionwith, `for instance, Va vtubular stemY orthevv like fitted to the-inflatablearticle. L

It is preferable to form the whole yvalve of meti al but Vwhen'used 'for light pressures Vother material may be used, such as -ebonitef y no," Y

It will be seen that no springs or' resilient washers, are employed in connection withftheiml proved valve, with the possible exceptionof aare used in connection withfthetwo'yalves'in thev Valve body.

f WhatIclaim isz-'1 o y 7' *j A pitman ff'rl cooperation wh the y'valve body of an'inflation Valve comprising a rod-like' mem-` washer in the'cap; but'no springs vor .washers ber -formed at one lend as a valve element, the

member being formed at the opposite end with a longitudinally ranging boreand with ay-transverse communicating bore opening through the side of the'member, the longitu'dinalbore being las formed'above thetransver'se bore Awith al valve Y seat, and a valveY operatingin the-longitudinal bore and cooperating with'said seatythe valve closing against pressure' through the transverse' bore into the longitudinal *bore* and 'opening against oppositepressure, the bottom ofthe lonev gitudinalbore kserving as a: limit for the opening `movement of thevalve.

- v nTHOMAS 'BEA'sLEx 

